import type { Ref } from 'vue'
import { computed, unref } from 'vue'
import { useI18n } from '@/hooks/web/useI18n'

const { t } = useI18n()
export function useUploadType({
  acceptRef,
  helpTextRef,
  maxNumberRef,
  maxSizeRef,
}: {
  acceptRef: Ref<string[]>
  helpTextRef: Ref<string>
  maxNumberRef: Ref<number>
  maxSizeRef: Ref<number>
}) {
  // 文件类型限制
  const getAccept = computed(() => {
    const accept = unref(acceptRef)
    if (accept && accept.length > 0)
      return accept

    return []
  })
  const getStringAccept = computed(() => {
    return unref(getAccept)
      .map((item) => {
        if (item.indexOf('/') > 0 || item.startsWith('.'))
          return item
        else
          return `.${item}`
      })
      .join(',')
  })

  // 支持jpg、jpeg、png格式，不超过2M，最多可选择10张图片，。
  const getHelpText = computed(() => {
    const helpText = unref(helpTextRef)
    if (helpText)
      return helpText

    const helpTexts: string[] = []

    const accept = unref(acceptRef)
    if (accept.length > 0)
      helpTexts.push(t('component.upload.accept', [accept.join(',')]))

    const maxSize = unref(maxSizeRef)
    if (maxSize)
      helpTexts.push(t('component.upload.maxSize', [maxSize]))

    const maxNumber = unref(maxNumberRef)
    if (maxNumber && maxNumber !== Number.POSITIVE_INFINITY)
      helpTexts.push(t('component.upload.maxNumber', [maxNumber]))

    return helpTexts.join('，')
  })
  return { getAccept, getStringAccept, getHelpText }
}
